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Browse SDKs · Flutter
SDKsFlutterEnterprise

Start a one-to-one call

Use the Flutter SDK to start a one-to-one audio or video call.

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signalingInvite() starts a one-to-one call. The SDK manages signaling state; the application must still use the returned credentials to connect its real-time audio/video media engine.

final info = SignalingInfo(
  userID: currentUserID,
  invitation: InvitationInfo(
    inviterUserID: currentUserID,
    inviteeUserIDList: [peerUserID],
    groupID: '',
    roomID: roomID,
    timeout: 30,
    mediaType: 'video',
    sessionType: ConversationType.single,
    platformID: Platform.isIOS ? IMPlatform.ios : IMPlatform.android,
  ),
  offlinePushInfo: offlinePushInfo,
);

final credentials = await OpenIM.iMManager.signalingManager
    .signalingInvite(info: info);

For a one-to-one call, pass an empty string as groupID and include only the peer in inviteeUserIDList. The Future returns SignalingCertificate. Connect the media room only after obtaining a valid token and roomID. Success does not mean that the invitee has answered.